DER Windows supplied over 1,280 of our top-of-line new construction vinyl windows and doors to the new apartment complex Uptown 500 located in Illinois. These stylish apartments each are a unique urban retreat located in a very suburban area, filled with modern amenities and energy-efficient appliances, makes it a perfect place for our energy-efficient vinyl windows and doors. There are variance apartment layouts from studio, 1 and 2 bedroom units, as well amenities which include a pool and a sundeck as well as office space for business below.